Sniping is an unfair and relatively common sharp-practice in online auction bidding. We believe it is dishonest, and our system ensures this unethical practice cannot happen on mBay.es.
First of all, what is it?
Auction sniping is the practice, in a timed online auction, of placing a bid likely to exceed the current highest bid as late as possible—usually seconds before the end of the auction—giving other bidders no time to outbid the sniper.
How we prevent it
Each seller starting an auction chooses when it ends. The precise amount of time remaining to make bids is shown on the auction page. To prevent sniping, if a bid is placed on our system within a secret time of that auction ending, the time left before the auction ends is extended by ten more minutes.
This gives others time to over-bid the sniper if they wish to. Snipers can no longer 'stalk' an auction, waiting for the last few seconds, to craftily slip in the lowest winning bid the instant before the time is up. With the late-bid extension 10-minutes, other bidders have time to notice and re-bid if they wish to.
In short, an auction will not close while bids are still coming in. Everybody gets a fair chance of updating their bids.